Hi. Currently, I’m going to project communication between RAK2245 and SX1276.
I’m using test_loragw_hal.c cord in HAL driver cord and from RAK2245 to SX1276 transmission test is OK!!
But, from SX1276 to RAK2245 transmission test is fail…
I think that need to adjust options in RAK2245 like preamble option or bandwidth or others…
But, I don’t know where these options and how to adjust these options.

I guess my problem is RAK2245 can’t find preamble signal from SX1276.

RAK2245 ==> SX1276
I know that adjust these options when from RAK2245 to SX1276 transmission.

I didn’t quite understand this question. RAK2245 is a module with one SX1301 baseband and two SX125X radio front ends. What did you mean by “Communication between RAK2245 and SX1276?”. Is there a RAK2245 version with SX1301 and SX1276?